Neutrino flux in the rotating reference frame
نویسنده
چکیده
It is considered neutrino flux in the rotating reference frame. Due to the rotation of the frame, neutrino is observed as a superposition of two states P-transformed one from another. Since P-transformation is forbidden for neutrino, in the rotating reference frame one can detect a half of neutrino flux. Due to the rotation of the earth, the detector of neutrinos can measure a half of the solar neutrino flux predicted by the SSM that may provide a solution for the solar neutrino puzzle. Weak interactions violate P-invariance and C-invariance but conserve CP-invariance [1]. The operations of C-transformation and of P-transformation are forbidden for neutrinos, but the operation of CP-transformation is allowed for neutrinos. Take the rotating reference frame. Turnover of the frame at the angle π corresponds to P-transformation of the frame. Under rotation, the positions of the frame in the range from π to 2π are P-transformed from the positions of the frame in the range from 0 to π. Neutrino in the rotating frame is observed in the superpositional state |ψ >= 1 √ 2 (|ν > +P|ν >). (1) However P-transformation is forbidden for neutrino thereforer it is forbidden to detect neutrino in the state P|ν >. Hence when measuring neutrino flux in the rotating frame it is forbidden to detect a half of neutrino flux. As known [2], [3] experiments measured solar neutrino fluxes significantly smaller than those predicted by the standard solar model (SSM), e.g. [4], [5]. Discrepancy between the theoretical and experimental neutrino flux from the sun presents the solar neutrino puzzle. The Homestake experiment measured [6] an average Ar production rate by solar neutrinos in Cl of Rate (Chlorine) = 2.55± 0.17(stat)± 0.18(syst) SNU (2) which is 32± 5% of the 8.1 −1.2 SNU predicted by the SSM [5]. The Kamiokande II and III experiment reported [7] the data consistent with B solar neutrino flux of φ ν⊙ = [2.9± 0.2(stat)± 0.3(syst)]× 10cms (3) which is 51%± 9% of that predicted by the SSM [5]. The GALLEX experiment measured [8] a Ge production rate by solar neutrinos in Ga of Rate (Gallium) = 79± 10(stat)± 6(syst) SNU (4)
منابع مشابه
Scalings of Inverse Energy Transfer and Energy Decay in 3-D Decaying Isotropic Turbulence with Non-rotating or Rotating Frame of Reference
Energy development of decaying isotropic turbulence in a 3-D periodic cube with non-rotating or rotating frames of reference is studied through direct numerical simulation using GPU accelerated lattice Boltzmann method. The initial turbulence is isotropic, generated in spectral space with prescribed energy spectrum E(κ)~κm in a range between κmin and ...
متن کاملNormal Fermi-Walker Derivative in E_{1}^{3}
In this paper, firstly, in $E_1^3$, we defined normal Fermi-Walker derivative and applied for the adapted frame. Normal Fermi-Walker parallelism, normal non-rotating frame, and Darboux vector expressions of normal Fermi-Walker derivative by normal Fermi-Walker derivative are given for adapted frame. Being conditions of normal Fermi-Walker derivative and normal non-rotating frame are examined fo...
متن کاملA Current-Based Output Feedback Sliding Mode Control for Speed Sensorless Induction Machine Drive Using Adaptive Sliding Mode Flux Observer
This paper presents a new adaptive Sliding-Mode flux observer for speed sensorless and rotor flux control of three-phase induction motor (IM) drives. The motor drive is supplied by a three-level space vector modulation (SVM) inverter. Considering the three-phase IM Equations in a stator stationary two axis reference frame, using the partial feedback linearization control and Sliding-Mode (SM) c...
متن کاملCurrent Limitation and Speed Drop Minimization in Optimal-Efficiency of Induction Motors
In conventional direct torque control (DTC), the stator flux is usually kept constant by controlling the x-axis component of the stator voltage in the stator flux reference frame. The torque is then controlled by the y-axis component of stator voltage. In this scenario, the stator current does not exceed its permissible value. However, in the so-called optimal efficiency mode, the induction mot...
متن کاملNeutrino transport and hydrodynamic stability of rotating proto-neutron stars
Aims. We study stability of differentially rotating non-magnetic proto-neutron stars. Methods. Linear stability properties are considered taking into account neutrino transport. Results. If neutrino transport is efficient, the star can be subject to a diffusive instability that can occur even in the convectively stable region. The instability arises on the time-scale comparable to the time-scal...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000